Samastipur is one of the thirty-eight districts of Bihar in India. The district headquarters are located at Samastipur. The district occupies an area of 2904 km² and has a population of 27,16,929. Sarairanjan is famous for tobacco.
Khudneshwar Asthan is a Hindu temple devoted to Lord Shiva located 17 kilometres southwest of the Samastipur district headquarters.The name of the temple was inherited from a Muslim woman named Khu